On Thursday, July 05, 2012, Daniel Lezcano wrote:
> Move this specific flag to the header file.
The patch evidently does more than that.
Is it just a cleanup, or is there a functional reason for doing it?
Rafael
> Signed-off-by: Daniel Lezcano <daniel.lezc...@linaro.org>
> ---
> drivers/idle/intel_idle.c | 8 --------
> include/linux/cpuidle.h | 16 +++++++++++++---
> 2 files changed, 13 insertions(+), 11 deletions(-)
>
> diff --git a/drivers/idle/intel_idle.c b/drivers/idle/intel_idle.c
> index fe95d54..3f0eb07 100644
> --- a/drivers/idle/intel_idle.c
> +++ b/drivers/idle/intel_idle.c
> @@ -101,14 +101,6 @@ static int intel_idle_cpu_init(int cpu);
> static struct cpuidle_state *cpuidle_state_table;
>
> /*
> - * Set this flag for states where the HW flushes the TLB for us
> - * and so we don't need cross-calls to keep it consistent.
> - * If this flag is set, SW flushes the TLB, so even if the
> - * HW doesn't do the flushing, this flag is safe to use.
> - */
> -#define CPUIDLE_FLAG_TLB_FLUSHED 0x10000
> -
> -/*
> * States are indexed by the cstate number,
> * which is also the index into the MWAIT hint array.
> * Thus C0 is a dummy.
> diff --git a/include/linux/cpuidle.h b/include/linux/cpuidle.h
> index 730e12e..be150c9 100644
> --- a/include/linux/cpuidle.h
> +++ b/include/linux/cpuidle.h
> @@ -67,10 +67,20 @@ struct cpuidle_state {
> * the cpuidle core the specified state can use
> the *
> * enter_dead function.
> *
> *
> *
> + * CPUIDLE_FLAG_TLB_FLUSHED : Set this flag for states where the HW flushes
> the *
> + * TLB for us and so we don't need cross-calls to
> *
> + * keep it consistent. If this flag is set, SW
> *
> + * flushes the TLB, so even if the HW doesn't do
> the *
> + * flushing, this flag is safe to use.
> *
> + *
> *
>
> *******************************************************************************/
> -#define CPUIDLE_FLAG_TIME_VALID (0x01)
> -#define CPUIDLE_FLAG_COUPLED (0x02)
> -#define CPUIDLE_FLAG_DEAD_VALID (0x04)
> +#define CPUIDLE_FLAG_TIME_VALID (0x01)
> +#define CPUIDLE_FLAG_COUPLED (0x02)
> +#define CPUIDLE_FLAG_DEAD_VALID (0x04)
> +#define CPUIDLE_FLAG_TLB_FLUSHED (0x08)
> +
> +
> +
>
> /**
> * cpuidle_get_statedata - retrieves private driver state data
>
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